• Title/Summary/Keyword: Road construction site

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A Study on Establishment of Mitigation Technique of Deterioration for Environmental-friendly Dam Construction in Rural Area - A focus of the Plant Ecosystem - (농촌지역내 친환경적인 댐 조성을 위한 훼손저감기법 적용 연구 - 식물생태계를 중심으로 -)

  • Lee, Soo-Dong;Kang, Hyun-Kyung
    • Journal of Korean Society of Rural Planning
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    • v.16 no.2
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    • pp.31-45
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    • 2010
  • Building a dam that is not considering the environmental impact and human social impact can cause the loss of entire ecospheres such as fragmentary green network, disturbance of plants ecosystem, the destruction of social and cultural indigenous resources, therefore, it can occur the environment change and distortion of ecosystem. The purpose of this study is that presenting the methods of ecosystem maintenance and ecosystem damage compensation about for environmentally direct impact i.e. the ecosystem change in the intended place for building a dam. According to the planning progress, the study was proceeded to planning site examine, assessment, conception plan. As the results of examine and assessment, it must be necessary to offered the maintenance and damage compensation if the site where include the 1st degree of biotope area, the 2nd degree of biotope and the 8th degree of green naturality area were damaged by being submerged and constructing road. In addition, according to the conception plan, we suggest the mitigation proposals such as plant communities transplant, planning of connecting green network against for influencing direct impact ecosystem that is destroying plant communities, damaging inhabitants, noise pollution, water pollution, etc.

Economical Optimum Forest Road Density with five Cost Variable (5가지 비용변수를 이용한 경제적 측면에서의 적정임도밀도 산정)

  • Park, Soo-Kyoo;Kang, Gun-Uh
    • Journal of Korean Society of Forest Science
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    • v.99 no.1
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    • pp.1-8
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    • 2010
  • The optimum forest road density was calculated with the method which is used in Europe on the investigation site in Korea. The economical optimum forest road density at the minimum total transport cost was 10.51 m/ha. The total transport cost was calculated 235,354 won/ha per year. The forest road construction cost amounted to 99,693 won/ha per year in case of the depreciation period of 30 years and the interest rate of 3%, the forest road maintenance cost amounted to 14,502 won/ha per year, the logging cost amounted to 99,564 won/ha per year, the cost of footpaths amounted to 18,142 won/ha per year, the cost by the loss of the production area amounted to 3,454 won/ha per year.

Utilization of Selected Landfill Waste Soils for Road Embankment Materials (도로성토재료로서 폐기물 매립장 선별토사의 활용)

  • Kim, Young-Su;Jung, Sung-Kwan;Choi, Byung-Hak;Lee, Sang-Woong
    • Journal of the Korean GEO-environmental Society
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    • v.4 no.1
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    • pp.29-39
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    • 2003
  • The major objectives of this study were to investigate the physical characteristics of selected refuse landfill waste soils which are excepted general waste materials and assessed the possibility of recycling for road construction or embankment materials. The old landfill site which is selected for this study is located at Youngyang in Kyungsangpukdo and it had been dumped and closed for 16-25 years. Therefore, the selected landfill waste soil became to geotechnical engineering characteristics when the closed landfill site is reused for road embankment materials. It was found that it would be better to use the selected waste soil mixed with the ordinary soil.

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A Study on the Analysis of the Relaxation Area and the Improvement Effect of the Ground by Road Subsidence (지하연속벽 배면 도로의 지반침하에 따른 이완영역분석방법과 지반 보강 효과검증에 관한 연구)

  • Lee, Hyoung Kyu;Lee, Yong-Sun
    • Journal of the Korean Geotechnical Society
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    • v.37 no.1
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    • pp.29-41
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    • 2021
  • Although underground works are essential to use underground spaces in urban areas efficiently, various damages caused by constructions have often occurred, making them major social problems. Since 2018, it is stipulated in the Special Act on Underground Safety Management that appropriate construction methods must be used in the design stage to prevent various damage cases. This Special Act includes establishing an area subject to underground safety impact assessment, analysis of ground and geological status, review of effects caused by changes in groundwater, review of ground safety, and establishment of measures to secure underground safety. This study area consists of various strata in order of landfill, sedimentary silt, sedimentary sand, sedimentary gravel, weathering zone, and foundation rock. Also, the slurry wall, a highly rigid underground continuous wall, was chosen as a construction method to consider high water table distribution and minimize the influence of the surroundings in this area. However, ground subsidence occurred on the road nearby in December 2019 due to the inflow of loosening soil to the construction area. Thus, several types of site investigations were conducted to suggest an appropriate analysis method and to find out loosed ground behavior and its area for the subsided site. As a result, new design soil properties were re-calculated, and the reinforcement measures were proposed through analytical verification.

Consideration of National Geotechnical Information Database based on GIS for application to construction sites (건설현장 활용을 위한 GIS기반의 국가지반정보DB 고찰)

  • Kim, Sang-Seok;Jang, Yong-Gu;Kang, Ho-Youn;Kang, In-Joon
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2007.04a
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    • pp.399-402
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    • 2007
  • National Geotechnical Information Database Project based on GIS has begun as public works and continued until now, the whole of country has been target on since the 2003. Today, the 60,581 number of geotechnical data(counted by bering number) have been constructed as GIS-DB and they are being serviced at the National Geotechnical Information Integration Management System(NGIIMS)(http://www.geoinfo.or.kr). In this study, we considered operation status of NGIIMS, GIS-DB distribution of Geotechnical Information and utilization in order to investgate applicability of National Geotechnical Information Database. The results appeared that Geotechnical Information DB was along road-center, and in the case of complex, was only to some area. But after the 2007 when the law of computerization responsibility would be institutionalized, the more geotechnical data will be constructed and be able to use at a construction site.

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Analysis of Problems in Road Cut-Slope Design Based on Practical Example (사례연구를 통한 도로 절개면 설계 문제점 분석과 대책안 제시)

  • 이기하;백영식;구호본;박혁진
    • Proceedings of the Korean Geotechical Society Conference
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    • 2000.11a
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    • pp.167-174
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    • 2000
  • Profiles of discontinuities through scanline method were investigated for the analysis of rock slope stability. Lower hemispheric projection method was used to evaluate the geometric stability and failure potential of these discontinuities. Also, safety factor was evaluated for the discontinuities of failure potential using by limit equilibrium analysis. Then, displacements of rock block due to the discontinuities were displayed by using the program UDEC(Universal Distinct Element Code) which applied the Distinct Element Method. When we determine the cut-slope in design, the characteristics of discontinuities is not represented only by strength parameters of intact rock. Therefore it is more reasonable method in assuring stability that first, construction would be preceded by the cut-slope of preliminary design, and then, cut-slope would be redetermined by elaborate site investigation in processing construction.

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Achievements of Environmental Restoration During Multipurpose Dam Construction - In case of Wheng Seong multipurpose dam - (댐 건설과 환경복원에 대한 우리의 노력 - 강원도 횡성군 횡성다목적댐 환경복원 사례를 중심으로 -)

  • Won, Hi-Young
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.3 no.3
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    • pp.100-104
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    • 2000
  • We have put considerable time and work to find a proper solution to restore the damaged natural environment due to Dam construction, and to restore the field around Dam on the basis of Environmentally Sound Sustainable Development(E.S.S.D). We've replaced the site which had been used as a equipment space with the natural-oriented park, have made a wildlife corridor for those animals which have been living in the area in a newly constructed road to in an out, and have introduced a streamside plant to organize green-space. We've received incredible favor from visitors and residents for the environment restoration. The natural-oriented park plays a role of giving the citizens to the pleasure and the comfort.

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The Study on the Statistical Characteristics of Road Traffic Noise in Apartment Complex (국내 단지도로에서 도로교통소음에 대한 통계학적 특성연구 -도로교통 소음원이 수음점에 미치는 수평.수직 음원 분포특성 중심으로-)

  • Cho, Il-Hyoung;Chang, Soon-Woong;Kang, Sung-Won;Kim, Seog-Ku;Ko, Jung-Young
    • Journal of Environmental Science International
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    • v.16 no.10
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    • pp.1179-1187
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    • 2007
  • This paper represents the statistical characteristics of sources and receptors for road traffic noise in apartment complex. Also we suggested that the site-specific characteristics of vertical and horizontal distributions in the complex apartment have been derived using a different analysis for evaluating levels of Leq1h by the apartment floor at a given distance from a road in terms of the flow rate, the mean speed of the traffic, and the percentage of the type vehicles in the day and night periods. As a result, the contribution orders of traffic quantity by the type of vehicles showed as followed: light vehicle>medium vehicle>heavy vehicle>motorcycle. Especially, the mixing ratio of entering the road on the heavy vehicle in the daytime was two times higher than that of in the night. The speed in all types of vehicle is in the range of 41 and 81 km/hr and noise level was not significantly different in day and night-time. The sources of road traffic noise had different variations and uncertainties using a random variable and probability distribution. The sound distribution to receptors by the apartment floor showed S curve between 1st floor and $15^{th}$ floor With the normality test, the normal distributions using Anderson-Darling Test followed $1^{st},\;3^{th},\;13^{th}$ and $15^{th}$, floor in the daytime and all floors except $7^{th}$ floor in the night (p>0.05). And also, the value of the pearson correlation coefficient (r) obtained in this study have significantly different at the range of floor. In conclusion, the results suggested that the distribution characteristics of levels of $Leq_{1h}$ on the sources and receptors of road traffic noise in apartment complex must be improved and developed on the guideline of regulation of road traffic noise.

Development of Dynamic Traffic Information System based on GPS Technology (GPS 기술기반의 동적 도로소통정보시스템 개발)

  • Jang, Yong-Gu
    • Journal of the Korean Association of Geographic Information Studies
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    • v.9 no.3
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    • pp.14-24
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    • 2006
  • There are many problems and limits in equipments being used for traffic-volume analysis in the country. And traffic-volume information acquired through existing equipments is not provided in real-time. In the case of urban, there are limits on guarantee of trust on comprehending a appropriate road-volume because of difficulty on analyzing traffic-volume density and time series. And it is difficult to applicate in deciding a road policy as existing equipments don't provide the control information of traffic-flow. Therefore, it is necessary to build a road-flow policy rapidly and accurately through the road-flow information that analyze post-processed statistics data using traffic-flow investigation based on real time. In this study, we developed TICS(Traffic Information Collection System) based on GPS which could transmit traffic information transformed from car location information to traffic control center. And we developed TCS(Traffic Control System) based on Web GIS, which could manage and analyze transmitted traffic information, and it could offer handled road-flow information to Web-site in realtime.

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Site Investigation of Abandoned Coal Mine and Stability of Road Tunnel (도로터널공사구간의 폐갱도 정밀조사 및 터널의 안정성 평가)

  • Shin, Hee-Soon;Kim, Jung-Yul;Lee, Byung-Joo;Han, Kong-Chang;Sunwoo, Choon;Song, Won-Kyung;Synn, Joong-Ho;Kim, Yoo-Sung;Park, Chan
    • Proceedings of the Korean Geotechical Society Conference
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    • 2001.03a
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    • pp.17-24
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    • 2001
  • Several underground cavities were found during construction of a road tunnel in 600m length . The area belong to Whasoon coalfield where extensive ground subsidences have occurred. It is necessary to find other underground cavities which might be located just near the road tunnel for safety, The field surveys and laboratory tests were conducted such as surface geological survey(672m), surface reflection seismic exploration(399m), drilling test(3 NX holes), 9 laboratory tests for rocks, 3 boreholes televiewer tests, reflection seismic exploration in tunnel(2, 342m). To estimate the effects of underground cavities on the road tunnel, 3 geological section were analysed with FLAC-2D modeling. The effects of the ground reinforcement were also analysed.

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